Cache

java.lang.Object
- org.rocksdb.AbstractNativeReference
- - org.rocksdb.AbstractImmutableNativeReference
  - - org.rocksdb.RocksObject
    - - org.rocksdb.Cache

All Implemented Interfaces:

java.lang.AutoCloseable

Direct Known Subclasses:

ClockCache, LRUCache
```
public abstract class Cache
extends RocksObject
```

Field Summary
- Fields inherited from class org.rocksdb.RocksObject
  nativeHandle_
- Fields inherited from class org.rocksdb.AbstractImmutableNativeReference
  owningHandle_

Constructor Summary

Constructors
Modifier Constructor Description

protected Cache(long nativeHandle)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`getPinnedUsage()`	Returns the memory size for the entries being pinned in cache.
`long`	`getUsage()`	Returns the memory size for the entries residing in cache.

Methods inherited from class org.rocksdb.RocksObject
disposeInternal, disposeInternal, getNativeHandle

Methods inherited from class org.rocksdb.AbstractImmutableNativeReference
close, disOwnNativeHandle, isOwningHandle

Methods inherited from class org.rocksdb.AbstractNativeReference
dispose, finalize

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Cache
```
protected Cache(long nativeHandle)
```
- Method Detail
  - getUsage
```
public long getUsage()
```
    Returns the memory size for the entries residing in cache.
    
    Returns:
    
    cache usage size.
  - getPinnedUsage
```
public long getPinnedUsage()
```
    Returns the memory size for the entries being pinned in cache.
    
    Returns:
    
    cache pinned usage size.